I needed something like that for my Esports Redactors and it didn't exist, yet. Basically, it adds BBCodes you can use into threads in order to embed brackets from various websites. This is also my first contribution so be nice with me and you will get cookie

Currently supported :

- Challonge.com
- Toornament.com

(I will add more BBCodes if I find websites allowing us to create custom brackets.)